When I was teaching in Wenatchee, Eastern Washington last autumn, one of my students had a handy zipped bag with pouches for storing quilting tools and notions.
Inside there are several divisions for keeping items separate, including four zipped compartments so that rotary cutters, spools of thread, pins etc may be kept contained.
These bags are made by Pat Lannoye of Malaga, WA and are available for purchase. You may contact Pat at plannoye@msn.com.